R&D has numerous theories on this
Best Common: Faithless Salvaging Honorable Mention: Mine Collapse Faithless Salvaging is meant to be the successor to Faithless Looting, a card that holds a special place in my heart
The Tabernacle at Pendrel Vale is a cute addition but again it taxes mana rather than cards and not tapping for mana itself makes it something you really need to play as a spell
Wizard of the Coast, the company responsible for designing and printing MTG, have been experimenting with more complex ward costs (like Saruman of Many Colors), so its likely theyll keep exploring this mechanic further in future sets
As we covered in a separate article, as long as you have three Energy, Gontis Aether Heart and Decoction Module in play, you can create infinite 3/3 colorless Robot artifact creature tokens
Its not a complete board wipe, but it can give you great value for the cost